No need to drive to theater, no need to waiting in line for a ticket. You can enjoy vivid 3D with your friends and family by turning on your 3D TV at home! Hi-SHOCK 3D glasses have passed rigorous interference testing; they can withstand a variety of fluorescent light and ambient light interference, delivering a stable 3D image. The glasses can be use for a 3D projector when Hi-SHOCK Projector IR emitter (model: HEP) is connected. The glasses also can be use with Samsung's LED / LCD / PDP 3D TV. All modes are ergonomic design and comfortable to wear. Specification Weight (contain battery): 35g Shutters: Light-speed LCD shutter Power management: Power button and Auto OFF Field rate: 120-480HZ Contrast ratio: 1000:1 Transmittance: 38+/-2% Sync operation: IR Operation temperature: 0°C-40°C Storage temperature: -10°C-75°C Power supply: rechargeable battery Battery life: 24hours continuously working Comfort: Flexible earpieces, rubber nosepiece Product Feature: 1) Excellent color accuracy& high contrast bring you optimal 3D viewing experience; 2) High-tech light-speed LCD shutter technology; 3) Stylish appearance 4) Intelligent synchronization 5) Anti-interference IR Communication 6) Lightweight & comfortable 7) Energy efficient 8) Auto OFF 9) Auto low power detection 10) Power by rechargeable battery 11) Wide viewing angel 12) Size for kids only